Please do not add the same package in another category. Please revert that.
And where your sci-libs/lpsolve gets from, I don't see it in main tree at all -> not a bug. Looks like you have it in some overlay, so just wipe it from the overlay.
The sci-libs version is in the science overlay. Please take a look at that version because it contains several fixes. Then merge.
I don't see any usefull fixes there. I rewrote the buildsystem to be proper autotools and reported it upstream -> proper gcc/libs/binaries and their install -> everything that the overlay ebuild does is handled by the buildsystem itself. Try to compare it between the two but I would say it works properly, as libreoffice works clearly with the lpsolve i put into main tree :)
right, thomas so should we remove it from the overlay then?
Yes. commit 10effc40aef5349a636d275c2c21a388fea3a5e9 Author: Thomas Kahle <tomka@gentoo.org> Date: Tue Jul 26 11:26:05 2011 +0100 Removed lpsolve, better version is in tree.